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[目的]为寻找腾冲酸性植烟土壤最佳石灰施用量。[方法]试验设置5个施石灰处理(CaO 0、750、1 500、2 250、3 000 kg/hm2),比较各处理的烤烟生长和产质量的表现。[结果]随着石灰的施用量增加,烟株的团棵期、旺长期、现蕾期都有所推迟。节距则随石灰施用量的增加而减小。当石灰施用量在处理C(CaO 1 500 kg/hm2)范围内时,农艺性状及经济性状均得到改善;而当超过此量时,不利于农艺性状及经济性状的改善。石灰施用量与烟叶还原糖含量呈正相关。除对中部烟叶烟碱含量效应较大外,石灰施用的效应最大为上部烟叶的化成成分。[结论]从烟叶的可用性和经济效益综合考虑,以CaO 1 500 kg/hm2为腾冲酸性土壤石灰施用最佳量。
[Objective] The research aimed to find the best lime application rate in acid soil of Tengchong. [Method] Five lime treatments (CaO 0,750,1 500,2 250,3 000 kg / hm2) were set up to compare the performance of growth and yield and quality of flue-cured tobacco. [Result] With the increase of the lime application rate, the tobacco plants had a long period and the budding stage had been postponed. Pitch decreases with increasing lime application. The agronomic traits and economic traits all improved when lime application was within the range of C (CaO 1 500 kg / hm2), while when the amount of lime was applied, the agronomic and economic traits were not improved. The amount of lime applied was positively correlated with the content of reducing sugars in the leaves. In addition to the nicotine content of tobacco in the central effect larger, the maximum effect of lime for the upper leaves of the chemical composition. [Conclusion] Considering the usability and economic benefits of tobacco leaves, CaO 1 500 kg / hm2 was the best dosage for acid soil lime in Tengchong.